TOPIC_DATA
-
The TOPIC_DATA policy applies to topic entities via the
topic_data
member of TopicQoS structures. Below is the IDL related to the topic data QoS policy:
struct TopicDataQosPolicy {
sequence<octet> value;
};
-
By default, the
value
is not set. It can be set to attach additional information to the created topic. The value of the TOPIC_DATA policy is available in data writer, data reader, and topic built-in topic data. The remote application can obtain the information via the built-in topic and use it in an application-defined way.